Cooking Steps

1. 

   Step1:Separate the egg whites from the yolks. Add 40 grams of sugar into the egg whites three times. Beat until the eggs are wet and foamy.

2. 

   Step2:After the egg yolk is broken, add water and salad oil in turn. Mix well each time.

3. 

   Step3:Sift in the flour with low gluten. Mix well with a rubber scraper.

4. 

   Step4:Add a small part of the beaten protein. Stir well. Add in most of the protein. Mix well.

5. 

   Step5:Mix the cake batter into four parts. Add red, yellow, blue and green food colors respectively. Just a little more. Mix well?

6. 

   Step6:Four colors of cake paste into the decoration ba

7. 

   Step7:Use an 8-inch square baking tray and pad it with oil paper. One for each color. The size, height and width of the extrusion should be as uniform as possible?

8. 

   Step8:Put in the oven preheated to 180 degrees. Bake for 10 minutes. Because the cake is thin, the baking time is shorter. Master the time according to the performance of each oven.

9. 

   Step9:Let it cool after baking. Whisk some cream. Roll it up. Roll it up and refrigerate it for a while before slicing.